package com.situ.web.controller;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/ajax2")
public class Ajax2Servlet extends HttpServlet{

	@Override
	protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		String name = req.getParameter("name");
		
		// select count(*) from student where name=?
		boolean isExist = false;
		if ("zhangsan".equals(name)) {
			isExist = true;
		} 
		
		// {"isExist" : true}
		resp.setContentType("text/html;charset=utf-8");
		resp.getWriter().write("{\"isExist\" : "+isExist+"}");
	}
}
